INVESTIGATION ON SERVICE LIFE OF LD STEEL MANDREL

Yang Changshou, Sun Jitao, Wang Zongbao. INVESTIGATION ON SERVICE LIFE OF LD STEEL MANDREL[J]. STEEL PIPE, 1991, 20(3): 34-37.

Citation:

Yang Changshou, Sun Jitao, Wang Zongbao. INVESTIGATION ON SERVICE LIFE OF LD STEEL MANDREL[J]. STEEL PIPE, 1991, 20(3): 34-37.

Citation:

Yang Changshou, Sun Jitao, Wang Zongbao. INVESTIGATION ON SERVICE LIFE OF LD STEEL MANDREL[J]. STEEL PIPE, 1991, 20(3): 34-37.

Abstract

The properties of LD steel for the mandrel of KPW50VMR tube-rolling mill and the heat-treatment process for the mandrel are described, LD steel mandrel has longer service life than A8 and MAR350 steel mandrels made by Germany and its manufacturing cost is low,

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